Laser engineered net shaping of metal powders: A study on energy consumption

Z. C. Liu, F. D. Ning, W. L. Cong, H. C. Zhang

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

With the increasing awareness of environmental protection and sustainable manufacturing, the energy consumptions and potential environmental impacts of laser additive manufacturing (LAM) technology has been attracting more and more concerns. This paper firstly investigates the energy distributions of different modules of laser engineered net shaping (LENS), studies the effects of input variables (laser power, scanning speed, and powder feed rate) and kinds of powders on the overall energy consumption during laser deposition processes. The Energy Consumption of Unit Deposition Volume (ECUDV, in J/mm3) is proposed as a measure for the average applied energy per volume of deposited material. The experimental results suggest that the powder feed rate has the largest effect on ECUDV, followed by scanning speed and laser power. When the geometry shaping is selected as an evaluating criterion, AISI 4140 powder will cause the largest energy consumption per unit volume.

Original languageEnglish
Pages1283-1291
Number of pages9
StatePublished - 2016
Event27th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2016 - Austin, United States
Duration: Aug 8 2016Aug 10 2016

Conference

Conference27th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2016
Country/TerritoryUnited States
CityAustin
Period08/8/1608/10/16

Keywords

  • Energy consumption
  • Laser engineered net shaping
  • Laser power
  • Powder feed rate
  • Scanning speed

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